Sept. 1897] Cockerell: Biological Notes on Coleoptera. 149' 



B. oblongulum Mann. — Bull. Mosc. 1852, XXV, p. 298 

 {Trechus). 



Referable to ^///(fr/zz/y Chaud., by the peculiar structure of the outer 

 lobe of the maxillse, were that genus allowed to stand. 



Habitat : Canada, Vermont, the White Mountains of New Hamp- 

 shire, Massachusetts (Lowell), Ohio, Michigan, Alaska, California and 

 Mexico. 



{To be continued.^) 



BIOLOGICAL NOTES ON SOME COLEOPTERA 

 FROM NEW MEXICO. 



By T. D. A. Cockerell, Mesilla, N. M. 



In the course of some studies of plant fauna, the following memo- 

 randa have been made. The contemplated work treating of the several 

 plant faunae in detail is not likely to be finshed for some years, so it 

 may be well to offer some of the results in advance. 



CHRYSOMELIDyE. 



Calligrapha serpentina Rog. 



In Mesilla this breeds abundantly on Sphcsralcea angustifolia. On 

 July 20 I found one ovipositing on the under side of a leaf next to the 

 midrib. The eggs are placed irregularly in a heap, loosely united by a 

 viscid secretion, the majority endwise on the leaf. The egg is 2 mm. 

 long, cylindrical, rounded at each end, pink (the color of a red rasp- 

 berry, granular from the presence of innumerable closely-placed low 

 tubercles, the extreme tips smooth and shining. Although the egg 

 masses are very conspicuous at a short distance, they could be over- 

 looked easily on the plant, being about the size and color of the flowers. 

 The larvae are gregarious on the under side of the leaf and are brown- 

 black to dark brown, with long black hairs on which appear pale ob- 

 jects which, on close inspection, are seen to be the stellate hairs of the 

 plant detached. I do not describe the larvae further, as I sent some to 

 Professor Wickham, who will probably describe and figure them. 



Chrysomela tortuosaT'?^^., (det. Wickh.) — On July 10 I took one 

 at Deming on Ephedra. 



Doryphora decemlineata Say. — Abundant on 6'(?/<a!«?/w elcBagni- 

 folium in Mesilla, breeding. This species belongs to the Upper Sonoran,. 



